forked from apache/hudi
/
TestHoodieListData.java
75 lines (63 loc) · 2.81 KB
/
TestHoodieListData.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.hudi.common.data;
import org.apache.hudi.common.util.collection.Pair;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import java.util.stream.Stream;
import static org.junit.jupiter.api.Assertions.assertEquals;
class TestHoodieListData {
private static Stream<Arguments> distinctWithKey() {
return Stream.of(
Arguments.of(
Arrays.asList(Pair.of("k1", 1), Pair.of("k2", 2)),
Arrays.asList(Pair.of("k1", 1), Pair.of("k1", 10), Pair.of("k1", 100), Pair.of("k2", 2)))
);
}
@ParameterizedTest
@MethodSource
void distinctWithKey(List<Pair<String, Integer>> expected, List<Pair<String, Integer>> originalList) {
List<Pair<String, Integer>> distinctList = HoodieListData.eager(originalList).distinctWithKey(Pair::getLeft, 1).collectAsList();
assertEquals(expected, distinctList);
}
@Test
void testEagerSemantic() {
List<String> sourceList = Arrays.asList("quick", "brown", "fox");
HoodieListData<String> originalListData = HoodieListData.eager(sourceList);
HoodieData<Integer> lengthsListData = originalListData.map(String::length);
List<Integer> expectedLengths = sourceList.stream().map(String::length).collect(Collectors.toList());
assertEquals(expectedLengths, lengthsListData.collectAsList());
// Here we assert that even though we already de-referenced derivative container,
// we still can dereference its parent (multiple times)
assertEquals(3, originalListData.count());
assertEquals(sourceList, originalListData.collectAsList());
}
@Test
public void testGetNumPartitions() {
HoodieData<Integer> listData = HoodieListData.eager(
IntStream.rangeClosed(0, 100).boxed().collect(Collectors.toList()));
assertEquals(1, listData.getNumPartitions());
}
}